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Error code reference

Electrolux Dryer Error Code HF

Line safe sensing error

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What the HF error code actually means

The HF code means your Electrolux dryer has detected a problem with an internal safety circuit that monitors the electrical power coming into the machine. This is not a sensor or a simple wiring issue that can be easily reset. The main control board inside the dryer has failed and will need to be replaced to get the dryer working again.

Diagnostic procedure

The full HF procedure

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1
First diagnostic step
Replace main board.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of HF

Ranked by how often they cause this code
  1. 1Main control board failure
  2. 2Power surge or voltage spike damage
  3. 3Sustained overvoltage or undervoltage at the outlet
  4. 4Moisture or contaminant intrusion on the board

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Questions people ask about HF

What does HF mean on a Electrolux dryer?
HF on an Electrolux dryer stands for a line safe sensing error, meaning the line safe sensing circuit on the main control board has failed. This circuit monitors the incoming electrical power supply to the dryer. Because the fault is internal to the main board, the board must be replaced to resolve the error. There is no external sensor or wiring fix that will clear a true HF fault.
Is it safe to use my Electrolux dryer when the HF code is displayed?
No, you should not operate the dryer while the HF error is active. The line safe sensing circuit exists to verify safe electrical conditions before allowing the dryer to run. With that circuit failed, the board cannot confirm safe operating conditions, and running the appliance presents a potential electrical risk. Leave the dryer unplugged until the main control board has been replaced.
How much does it cost to repair an Electrolux dryer with an HF error code?
The cost to repair an HF error on an Electrolux dryer depends on the price of the replacement main control board and whether you hire a technician or do the repair yourself. Main control boards for Electrolux dryers typically range from $100 to $250 or more depending on the model. If you hire a professional appliance technician, labor charges will add roughly $75 to $150 on top of the part cost, bringing the total repair estimate to somewhere between $175 and $400.
Can I fix the HF error code myself on an Electrolux dryer?
A knowledgeable DIYer comfortable working with appliance electronics can replace the main control board themselves. Before ordering a board, verify that the dryer's power outlet is supplying correct voltage, since a facility-level power problem could stress or damage a new board. If the outlet checks out, replacing the main control board is the repair. Make sure to disconnect power to the dryer completely before handling the board.
Will resetting my Electrolux dryer clear the HF error code?
A simple reset, such as unplugging the dryer and plugging it back in, will not permanently clear the HF code. Because the fault is an internal hardware failure within the main control board's sensing circuit, the error will return as soon as the dryer powers up and the board attempts to run its sensing function again. The only lasting fix is replacing the failed main control board.

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